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+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Protocol.js
+ */
+
+/**
+ * Class: OpenLayers.Protocol.WFS
+ * Used to create a versioned WFS protocol. Default version is 1.0.0.
+ *
+ * Returns:
+ * {<OpenLayers.Protocol>} A WFS protocol of the given version.
+ *
+ * Example:
+ * (code)
+ * var protocol = new OpenLayers.Protocol.WFS({
+ * version: "1.1.0",
+ * url: "http://demo.opengeo.org/geoserver/wfs",
+ * featureType: "tasmania_roads",
+ * featureNS: "http://www.openplans.org/topp",
+ * geometryName: "the_geom"
+ * });
+ * (end)
+ *
+ * See the protocols for specific WFS versions for more detail.
+ */
+OpenLayers.Protocol.WFS = function(options) {
+ options = OpenLayers.Util.applyDefaults(
+ options, OpenLayers.Protocol.WFS.DEFAULTS
+ );
+ var cls = OpenLayers.Protocol.WFS["v"+options.version.replace(/\./g, "_")];
+ if(!cls) {
+ throw "Unsupported WFS version: " + options.version;
+ }
+ return new cls(options);
+};
+
+/**
+ * Function: fromWMSLayer
+ * Convenience function to create a WFS protocol from a WMS layer. This makes
+ * the assumption that a WFS requests can be issued at the same URL as
+ * WMS requests and that a WFS featureType exists with the same name as the
+ * WMS layer.
+ *
+ * This function is designed to auto-configure <url>, <featureType>,
+ * <featurePrefix> and <srsName> for WFS <version> 1.1.0. Note that
+ * srsName matching with the WMS layer will not work with WFS 1.0.0.
+ *
+ * Parameters:
+ * layer - {<OpenLayers.Layer.WMS>} WMS layer that has a matching WFS
+ * FeatureType at the same server url with the same typename.
+ * options - {Object} Default properties to be set on the protocol.
+ *
+ * Returns:
+ * {<OpenLayers.Protocol.WFS>}
+ */
+OpenLayers.Protocol.WFS.fromWMSLayer = function(layer, options) {
+ var typeName, featurePrefix;
+ var param = layer.params["LAYERS"];
+ var parts = (OpenLayers.Util.isArray(param) ? param[0] : param).split(":");
+ if(parts.length > 1) {
+ featurePrefix = parts[0];
+ }
+ typeName = parts.pop();
+ var protocolOptions = {
+ url: layer.url,
+ featureType: typeName,
+ featurePrefix: featurePrefix,
+ srsName: layer.projection && layer.projection.getCode() ||
+ layer.map && layer.map.getProjectionObject().getCode(),
+ version: "1.1.0"
+ };
+ return new OpenLayers.Protocol.WFS(OpenLayers.Util.applyDefaults(
+ options, protocolOptions
+ ));
+};
+
+/**
+ * Constant: OpenLayers.Protocol.WFS.DEFAULTS
+ */
+OpenLayers.Protocol.WFS.DEFAULTS = {
+ "version": "1.0.0"
+};